Help!

I have created a simple SQL database from the solution explorer (visual studio 2005). My table has a primary key assigned. I can manually add rows and programatically read the rows. I try to edit, add, or delete a row using the following code: (delete shown here)

DataSet dataSet = new DataSet();
int count = sqlDataAdapterA ctivityLog.Fill (dataSet);
DataTable table = dataSet.Tables["CanMessage s"];...